Results 71 to 80 of about 3,879,883 (226)

Experimental and Numerical study of a hydrogen fuelled I.C. engine fitted with the hydrogen assisted jet ignition system [PDF]

, 2007
The use of hydrogen as an engine fuel poses several challenges as well as opportunities in engine design and control. These challenges are mainly due to hydrogen's high flame temperatures at near stoichiometric mixtures, as well as the reactant volume ...
Boretti, A. A., Brear, M. J., Watson, H. C.   +2 more
core   +1 more source

Clostridium perfringens research on vacuum packed beef commercialized on Distrito Federal and in the surrounding area

Semina: Ciências Biológicas e da Saúde, 2018
The aim of this work was to detect Clostridium perfringens in 54 samples of vacuum packed beef sold at the Federal District area, and to detect the presence of the cpe toxin gene by Polymerase chain reaction (PCR), also evaluate the culture medium SPS ...
Igor de Oliveira Poty, Joana Marchesini Palma, Francisco Carlos Faria Lobato, Ana Lourdes Arrais de Alencar Mota, Angela Patricia Santana   +4 more
doaj   +1 more source

Data-driven Exploration of New Pressure-induced Superconductivity in PbBi$_2$Te$_4$ with Two Transition Temperatures

, 2018
Candidates compounds for new thermoelectric and superconducting materials, which have narrow band gap and flat bands near band edges, were exhaustively searched by the high-throughput first-principles calculation from an inorganic materials database ...
Adachi, Shintaro, Hara, Hiroshi, Hou, Zhufeng, Irifune, Tetsuo, Matsumoto, Ryo, Murakami, Ryo, Nagao, Masanori, Nakamura, Kazuki, Takano, Yoshihiko, Takeya, Hiroyuki, Tanaka, Hiromi, Terakura, Kiyoyuki, Yamamoto, Sayaka   +12 more
core   +1 more source

Design of Fission Chamber Pulse Pre-amplifier

Journal of Isotopes
Fission chambers are installed in the measurement channels within the reactor and the signals are transmitted via inorganic and organic cables. They can be used for monitoring the neutron flux of the reactor from startup to full power operation.
Xinyi HUANG, Fangdong YANG, Yang LIU, Jiangbin ZHAO, Haifeng LIU, Chenyang TANG, Jiayu SUN, Zhan LIU, Gaokui HE   +8 more
doaj   +1 more source

Measurement of methane emission from sheep by the sulphur hexafluoride tracer technique and by the calorimetric chamber: failure and success

Animal, 2008
The aim of this study was to evaluate the sulphur hexafluoride (SF6) tracer technique for methane (CH4) emission measurement in sheep. Ten cryptorchid Romney sheep were involved in two indoor trials (T1 and T2), where daily CH4 emissions were ...
C.S. Pinares-Patiño, C.W. Holmes, K.R. Lassey, M.J. Ulyatt   +3 more
doaj   +1 more source

Pressure-induced Insulator to Metal Transition of Mixed Valence Compound Ce(O,F)SbS$_{2}$

, 2018
Transport properties of Ce$_{0.85}$F0.15SbS$_{2}$ and undoped CeOSbS$_{2}$ under high pressure were investigated experimentally and theoretically. Electrical resistivity measurements of the Ce$_{0.85}$F0.15SbS$_{2}$ single crystals were performed under ...
Adachi, Shintaro, Hara, Hiroshi, Irifune, Tetsuo, Kuroki, Kazuhiko, Matsumoto, Ryo, Murakami, Ryo, Nagao, Masanori, Nakamura, Kazuki, Ochi, Masayuki, Takano, Yoshihiko, Takeya, Hiroyuki, Tanaka, Hiromi, Tanaka, Isao, Yamamoto, Sayaka   +13 more
core   +1 more source

Study on combustion and emissions of methanol engines based on active pre-chamber jet ignition technology

Case Studies in Thermal Engineering
Against the backdrop of the ''dual carbon'' goals, this study addressed the challenges of narrow lean-burn limits and low thermal efficiency in conventional spark-ignition (SI) methanol engines by proposing the active pre-chamber jet ignition (APCH-JI ...
Yafeng Ren, Hong Jia, Jiaxin Qin, Qisheng Zhang, Jinyan Du   +4 more
doaj   +1 more source

Vacuum chamber considerations for improved organic light-emitting diode lifetime

AIP Advances, 2018
We investigated the influence of vacuum chamber impurities on the lifetime of highly efficient TADF-based OLEDs. Batch-to-batch lifetime variations are clearly correlated with the results of contact angle measurements, which reflect the amount of ...
Hiroshi Fujimoto, Shin-ichiro Kobayashi, Hin Wai Mo, Satoshi Yukiwaki, Kaori Nagayoshi, Mao Yasumatsu, Kentaro Harada, Chihaya Adachi   +7 more
doaj   +1 more source

Numerical Investigation Of Pre-Chamber Ignition In Internal Combustion Engines

, 2020
Homogeneous lean combustion is a great opportunity to reduce Internal Combustion Engine (ICE) emissions (both greenhouse gases and pollutants) if combined with responsible use. Unfortunately, burning lean mixtures and meeting the demands of ICEs is complicated by low reactions rates, extinction, instabilities and mild heat release. There is therefore a
openaire   +3 more sources

Pre-chamber Ignition System for Homogeneous Lean Combustion Processes with Active Fuelling by Volatile Fuel Components [PDF]

, 2018
The combustion of homogeneous lean or diluted mixtures would significantly increase the efficiency of SI engines, but common spark ignitions systems are incapable to ignite these mixtures.
Russwurm, Tim, Schumacher, Moritz, Wensing, Michael   +2 more
core   +2 more sources